rake db:schema:dump in cmd 它不会在数据库文件夹中生成 schema.rb 文件

Question

当我尝试在cmd中运行耙子db:schema:dump时，我是轨道上的红宝石新手，它没有在数据库文件夹中生成schema.rb文件

C：\Users\ACK\SITES\simple_cms>rake db：schema：dump --trace ** 调用 db：schema：dump (first_time( ** 调用环境 (first_time( ** 执行环境 ** 调用 db：load_config (first_time( ** 调用rails_env (first_time( ** 执行rails_env ** 执行 db：load_config 耙子中止！无法在第 19 行第 2 列 C：/Ruby192/lib/ruby/1.9.1/psych.rb：148：in parse' C:/Ruby192/lib/ruby/1.9.1/psych.rb:148:in parse_stream C：/Ruby192/lib/ruby/1.9.1/psych.rb：119：in parse' C:/Ruby192/lib/ruby/1.9.1/psych.rb:106:in load' C：/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/application/configu Ration.rb：106：in database_configuration' C:/Ruby192/lib/ruby/gems/1.9.1/gems/activerecord-3.1.3/lib/active_record/railtie .rb:68:in块(2 个级别(在 ' C：/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/lazy_ load_hooks.rb：36：在instance_eval' C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/lazy_ load_hooks.rb:36:in execute_hook' C：/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/lazy_ load_hooks.rb：43：各block in run_load_hooks' C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/lazy_ load_hooks.rb:42:in" C：/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/lazy_ load_hooks.rb：42：in run_load_hooks' C:/Ruby192/lib/ruby/gems/1.9.1/gems/activerecord-3.1.3/lib/active_record/base.rb :2190:in ' C：/Ruby192/lib/ruby/gems/1.9.1/gems/activerecord-3.1.3/lib/active_record/railtie s/databases.rake：6：in block (2 levels) in <top (required)>' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:205:in call' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb：205：in block in execute' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:200:in 每个' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb：200：in execut e' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:158:in 块在invoke_with_call_chain' C：/Ruby192/lib/ruby/1.9.1/monitor.rb：201：in mon_synchronize' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:151:in invoke _with_call_chain' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb：176：in block in invoke_prerequisites' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:174:in 每个' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb：174：in invoke _prerequisites' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:157:in 块在invoke_with_call_chain' C：/Ruby192/lib/ruby/1.9.1/monitor.rb：201：in mon_synchronize' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:151:in invoke _with_call_chain' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb：144：in invoke ' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:116:in invoke_task' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb：94：in block (2 levels) in top_level' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in 每个' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb：94：in block in top_level' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:in standard_exception_handling' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb：88：in top_level' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:66:in 块在运行' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb：133：in standard_exception_handling' C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:63:in run' C：/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/bin/rake：33：in `

' C：/

Ruby192/bin/rake：19：in load' C:/Ruby192/bin/rake:19:in ' 任务： 顶部 => db：schema：dump => db：load_config

C：\Users\ACK\SITES\simple_cms>

Answer 1

确保 database.yml 文件中的密码是一个字符串，因为并非所有数字都是字符串。例如，321 会拉出错误，b321 会工作。

至少在我撰写本文(4.21.12(时，不同的程序更新是异步进行的，并且由于它们之间的通信方式不同，因此可能会中断。